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Thread: Oil Viscosity

  1. 30th May 2025, 08:19 AM #1
    reid25
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    Oil Viscosity

    So I've had ~7000kms on my last service in which i used Penrite HPR Diesel 5w-40, on recommendation of many forum posts/threads id read here. I did notice the car (TD5) was a bit noisier/rattlier, especially on cold, so from the beginning had thought that previously it had had a thicker oil. I then noticed yesterday that on LRA's website, their service kits/lists for D2 TD5 recommend 15w-40.

    My question is - with a TD5 at 180,000kms, what would you be using? Why do LRA recommend something different to everyone here? My D2 was serviced religiously at LR and a rover shop in Sydney, if that makes any difference to working out whether it had a thicker oil. I understand LR probably recommends a thinner oil but the indy would have it's own preference (it's a pretty well renowned shop)

    Cheers!
    2000 D2 TD5 Auto, Chawton White
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  2. 30th May 2025, 08:45 AM #2
    AK83
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    LR doesn't recommend thinner oil. They do for cold(-20) type climates. They have a recommendation range. For moderate climates like Aus(except alpine areas of course) they recommend 10W40. For hot climates they recommend up to 10W60 oil too.(as per RAVE)

    IIRC, 5W40 is usually a full synthetic, and if you don't mind the added cost, just keep using that, nothing wrong.
    Arthur.

    All these discos are giving me a heart attack!

    '99 D1 300Tdi Auto ( now sold :( )
    '03 D2 Td5 Auto
    '03 D2a Td5 Auto
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  3. 30th May 2025, 09:22 AM #3
    reid25
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    Quote Originally Posted by AK83 View Post
    LR doesn't recommend thinner oil. They do for cold(-20) type climates. They have a recommendation range. For moderate climates like Aus(except alpine areas of course) they recommend 10W40. For hot climates they recommend up to 10W60 oil too.(as per RAVE)

    IIRC, 5W40 is usually a full synthetic, and if you don't mind the added cost, just keep using that, nothing wrong.

    I see. I was planning on 10w-40 for my next service, just as the added noise of the engine worries me when hearing it!
    2000 D2 TD5 Auto, Chawton White
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  4. 30th May 2025, 11:28 AM #4
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    thai_tiger
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    According to Penrite they recommend HPR 5w40 semi synthetic no substitute allowed.

    Ive been using this for the last 10+ years with no issue but yes does sound a little rattly, but that is normal with the Td5
    Cheers tt




    D2 2004 TD5 Classic

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  5. 30th May 2025, 03:35 PM #5
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    laney
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    Been using Nulon 10w-40 heavy duty semi synthetic oil for many years no problems
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